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patch 8.1.1642: may use uninitialized variable

Problem:    May use uninitialized variable. (Patrick Palka)
Solution:   Initialize variables earlier. (closes #4623)
This commit is contained in:
Bram Moolenaar
2019-07-07 14:26:59 +02:00
parent 6cc7e21412
commit ec572ad6a6
3 changed files with 27 additions and 12 deletions

View File

@@ -607,6 +607,7 @@ update_screen(int type_arg)
curwin->w_lines_valid = 0; /* don't use w_lines[].wl_size now */
return FAIL;
}
updating_screen = TRUE;
#ifdef FEAT_TEXT_PROP
// Update popup_mask if needed. This may set w_redraw_top and w_redraw_bot
@@ -614,7 +615,6 @@ update_screen(int type_arg)
may_update_popup_mask(type);
#endif
updating_screen = TRUE;
#ifdef FEAT_SYN_HL
++display_tick; /* let syntax code know we're in a next round of
* display updating */
@@ -3189,9 +3189,10 @@ win_line(
int n_skip = 0; /* nr of chars to skip for 'nowrap' */
int fromcol, tocol; /* start/end of inverting */
int fromcol_prev = -2; /* start of inverting after cursor */
int noinvcur = FALSE; /* don't invert the cursor */
int fromcol = -10; // start of inverting
int tocol = MAXCOL; // end of inverting
int fromcol_prev = -2; // start of inverting after cursor
int noinvcur = FALSE; // don't invert the cursor
pos_T *top, *bot;
int lnum_in_visual_area = FALSE;
pos_T pos;
@@ -3451,39 +3452,40 @@ win_line(
#endif
/*
* handle visual active in this window
* handle Visual active in this window
*/
fromcol = -10;
tocol = MAXCOL;
if (VIsual_active && wp->w_buffer == curwin->w_buffer)
{
/* Visual is after curwin->w_cursor */
if (LTOREQ_POS(curwin->w_cursor, VIsual))
{
// Visual is after curwin->w_cursor
top = &curwin->w_cursor;
bot = &VIsual;
}
else /* Visual is before curwin->w_cursor */
else
{
// Visual is before curwin->w_cursor
top = &VIsual;
bot = &curwin->w_cursor;
}
lnum_in_visual_area = (lnum >= top->lnum && lnum <= bot->lnum);
if (VIsual_mode == Ctrl_V) /* block mode */
if (VIsual_mode == Ctrl_V)
{
// block mode
if (lnum_in_visual_area)
{
fromcol = wp->w_old_cursor_fcol;
tocol = wp->w_old_cursor_lcol;
}
}
else /* non-block mode */
else
{
// non-block mode
if (lnum > top->lnum && lnum <= bot->lnum)
fromcol = 0;
else if (lnum == top->lnum)
{
if (VIsual_mode == 'V') /* linewise */
if (VIsual_mode == 'V') // linewise
fromcol = 0;
else
{